摘   要：铸余渣主要含有C₂S、C₃S及少量铝酸盐和玻璃质，粒度小于1mm的铸余渣占比为53.11%，通过10mm过筛可获得41%的铸余渣尾粉。在水泥预粉磨中外掺6%的铸余渣，粉磨过程没有出现“饱磨返料”的现象，表明其易磨性较好，但粉磨产量下降4t/h，因此，单独粉磨铸余渣经济性不佳，需搭配各类混合材共同粉磨。在水泥中外掺6%的铸余渣后各项指标满足GB 175—2007《通用硅酸盐水泥》。将铸余渣用于替代28%的磷渣微粉后的强度均有所降低，但后期强度可满足GB/T 14902—2012《预拌混凝土》的使用要求。

Abstract: The casting residue mainly contains C₂S and C₃S, a small amount of aluminates and glass. The ratio of casting residue to grain size less than 1mm is 53.11%, and 41% of the tailings powder can be obtained by 10mm screening of. In casting slag cement pre grinding and grinding process with 6%, no "return saturation" phenomenon, show its good grindability, but the grinding production declines 4t/hours, so separate grinding slag has the poor economy, which needs all kinds of collocation mixed material grinding together. After adding 6% of the casting residue to the cement, the indexes meet GB 175—2007 General Portland Cement. The strength of the slag used to replace the 28% slag powder has been reduced, but the later strength still meets the requirements of GB/T 14902—2012 Ready Mixed Concrete.